/Engine/Plugins/Online/OnlineSubsystem/Source/Public/OnlineSubsystemTypes.h
First 16 bits are reading permissions Second 16 bits are writing/publishing permissions
enum EOnlineSharingCategory { None = 0x00, ReadPosts = 0x01, Friends = 0x02, Email = 0x04, Mailbox = 0x08, OnlineStatus = 0x10, ProfileInfo = 0x20, LocationInfo = 0x40, ReadPermissionMask = 0x0000FFFF, DefaultRead = ProfileInfo | LocationInfo, SubmitPosts = 0x010000, ManageFriends = 0x020000, AccountAdmin = 0x040000, Events = 0x080000, PublishPermissionMask = 0xFFFF0000, DefaultPublish = None, }